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Lochinvar LTN07575 User Manual

Lochinvar LTN07575
38 pages
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1
Instruction Manual
PRINTED 0517 100286991_2000538798_Rev C
KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE
WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.
RESIDENTIAL GAS WATER HEATERS
NOT FOR USE IN MANUFACTURED (MOBILE) HOMES
INSTALLATION - OPERATION
- SERVICE - MAINTENANCE
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
Read and understand this instruction
manual and the safety messages
herein before installing, operating or
servicing this water heater.
Failure to follow these instructions and
safety messages could result in death
or serious injury.
This manual must remain with the
water heater.
WARNING: If the information in these
instructions is not followed exactly, a fire
or explosion may result causing property
damage, personal injury or death.
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS:
Do not try to light any appliance.
Do not touch any electrical switch; do
not use any phone in your building.
Immediately call your gas supplier
from a neighbors phone. Follow the
gas suppliers instructions.
If you cannot reach your gas supplier,
call the fire department.
Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
Low Lead Content
For Your Safety
AN ODORANT IS ADDED TO THE GAS USED
BY THIS WATER HEATER.
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Lochinvar LTN07575 Specifications

General IconGeneral
BrandLochinvar
ModelLTN07575
CategoryWater Heater
LanguageEnglish

Summary

SAFE INSTALLATION, USE AND SERVICE

APPROVALS

Details certifications and standards the water heater meets, ensuring compliance and quality.

GENERAL SAFETY INFORMATION

Fire Hazard

Essential precautions to mitigate fire risks associated with the water heater's operation and surroundings.

Explosion Hazard

Critical warnings about potential explosion risks and necessary safety measures for prevention.

Breathing Hazard - Carbon Monoxide Gas

Information on the dangers of carbon monoxide gas and methods for ensuring safe ventilation.

Fire or Explosion Hazard

Specific hazards related to gas leaks, ignition sources, and combustible materials.

INTRODUCTION

Abbreviations Used

Glossary of abbreviations used throughout the manual for clarity and understanding.

Qualified Installer or Service Agency

Defines the required qualifications for individuals performing installation and service.

Preparing for The Installation

Outlines crucial preliminary steps and considerations before commencing installation.

TYPICAL INSTALLATION

Get to Know Your Water Heater - Gas Models

Identifies and explains the function of the main components of the gas water heater.

Application/Use of Water Heater

Specifies the intended applications and limitations for the water heater's use.

Hotter Water Can Scald

Addresses the risks of scalding from hot water and provides prevention methods.

Facts to Consider About the Location

Provides guidelines for selecting an appropriate and safe installation site.

High Altitude

Discusses operational considerations and adjustments for water heaters at high altitudes.

Adjusting Air Shutter for Higher Altitudes

Instructions for adjusting the air shutter to optimize performance in high-altitude environments.

Clearances

Specifies the mandatory minimum clearance distances around the water heater.

Insulation Blankets

Information and safety precautions related to the application of external insulation blankets.

Hard Water

Recommendations for managing hard water conditions and protecting equipment.

INSTALLATION REQUIREMENTS

Gas Supply Systems

Outlines the requirements and considerations for the installation of gas supply systems.

Gas Pressure Requirements

Details the minimum and maximum gas pressure specifications for proper operation.

Supply Gas Regulator

Instructions for the selection, installation, and use of a gas supply pressure regulator.

Mixing Valves

Explains the function and installation of mixing valves for temperature control at fixtures.

Water Piping

Covers essential guidelines and requirements for connecting the water heater to the piping system.

Closed Water Systems

Explains the nature of closed water systems and their impact on the water heater.

Thermal Expansion

Addresses thermal expansion in closed systems and the necessity of expansion tanks.

Temperature-Pressure Relief Valve

Information on the T&P valve, its critical role, and installation specifications.

Filling the Water Heater

Step-by-step instructions for safely filling the water heater tank before operation.

AIR REQUIREMENTS

Unconfined Space

Defines unconfined spaces and the criteria for adequate combustion air supply.

Confined Space

Defines confined spaces and outlines requirements for fresh air intake.

Fresh Air Openings for Confined Spaces

Details on sizing and placement of openings to provide fresh air in confined areas.

Outdoor Air Through Two Openings

Methods for supplying outdoor air into confined spaces using two openings.

Outdoor Air Through Two Horizontal Ducts

Guidelines for using horizontal ducts to supply outdoor air to confined spaces.

Outdoor Air Through Two Vertical Ducts

Guidelines for using vertical ducts to supply outdoor air to confined spaces.

Air From Other Indoor Spaces

Describes using adjacent indoor spaces to provide combustion and ventilation air.

VENTING

Vent Dampers

Information and warnings concerning the installation and use of vent dampers.

GAS PIPING

Sediment Traps

Instructions for installing sediment traps to protect the gas control valve.

FOR YOUR SAFETY READ BEFORE LIGHTING

Lighting Instructions

A detailed, step-by-step guide for safely igniting the pilot and main burner.

TEMPERATURE REGULATION

Hotter Water Can Scald

Explains the risks of scalding from excessively hot water and preventative measures.

Water Temperature Adjustment

Instructions on how to adjust the water temperature setting on the thermostat.

Standard Mode

Describes the normal operation mode where the thermostat maintains the set temperature.

Vacation Setting

Details on using the vacation setting to conserve energy when the unit is unused.

Status Light Code

Explains the diagnostic codes indicated by the status light flashes.

START-UP CONDITIONS

Draft Hood Operations

Procedures for checking and ensuring the proper functioning of the draft hood.

Condensation

Explains the causes and appearance of condensation during operation.

Checking Gas Input

Method for verifying that the water heater is receiving the correct gas input rate.

FOR YOUR INFORMATION

Operational Conditions

Discusses normal operating parameters and common issues encountered.

Air in Hot Water Faucets

Explains the potential for hydrogen gas accumulation in faucets after periods of non-use.

Temperature-Exceeded Safety Shut-Off System

Describes the automatic safety system that shuts off the unit if temperatures become too high.

PERIODIC MAINTENANCE

Venting System Inspection

Guidelines for regularly inspecting the venting system for obstructions and damage.

Burner Inspection

How to visually inspect the burner for signs of sooting or improper combustion.

Burner Cleaning

Steps for cleaning the burner assembly to ensure efficient operation.

Air Shutter Adjustment

Instructions for adjusting the air shutter to achieve optimal burner flame characteristics.

Housekeeping

Recommendations for maintaining cleanliness around the water heater for safety.

Anode Rod Inspection

Guidance on inspecting and replacing the anode rod for tank corrosion protection.

Temperature-Pressure Relief Valve Test

Procedure for periodically testing the relief valve to ensure it functions correctly.

DRAINING AND FLUSHING

To Drain The Water Heater Storage Tank

Step-by-step instructions for safely draining the water heater's storage tank.

To Flush The Water Heater Storage Tank

Procedures for flushing the tank to remove sediment and maintain performance.

LEAKAGE TEST POINTS

Service

Provides guidance on troubleshooting common issues and when to contact a qualified service agent.

REMOVING AND REPLACING THE GAS CONTROL VALVE/THERMOSTAT

Removing the Gas Control Valve/Thermostat

Detailed instructions for safely removing the gas control valve/thermostat assembly.

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